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2012 27" iMac - inconsistent white color on bottom half

2207 Views 11 Replies Latest reply: Jan 31, 2013 2:13 AM by Larli78 RSS
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Jan 3, 2013 10:23 PM

Noticing an issue with my brand new 2012 Core i7 27" iMac.

 

The top half of the screen - whites seem white, white balance seems good.

The bottom half of the screen is a different story.  At about half way down the screen, the whites become a yellowish gray and it looks like the screen has been in a smoker's house.  That's a bit of a colorful analogy but the screen seems gray and dingy.

 

Adjusting the tilt seems to have a marginal impact but the overall impression of bottom-half dinginess remains.

 

Not sure what's going on -- anyone else have this?

iMac (27-inch, Late 2012), OS X Mountain Lion (10.8.2), 24 GB RAM, i7 @ 3.4 GHz, 3TB Fusion

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